Society for Science and the Public
Science News for Students: Twinkle, Twinkle Oldest Stars
Astronomers have determined how super-bright galaxies can be used to detect the faint glow of "cosmic fog." Cosmic light is light that has left every star and now lingers in the universe, including light from stars that have burned out.
Physics4kids
Physics 4 Kids: Mechanics and Motion
Motion is one of the key topics in physics. Everything in the universe moves. It might only be a small amount of movement and very very slow, but movement does happen. Don't forget that even if you appear to be standing still, the Earth...
Physics4kids
Physics 4 Kids: Where Traditional Physics Stops
We're about to move into the modern age of physics. In the early 1800's, scientists began examining the basis of matter, space, and time. Sometimes it gets very confusing, but the big idea is that Newton's physics describe about 90% of...
NASA
Nasa Star Child: What Is a Light Year and How Is It Used?
This is a definition and example of how distance is measured in astronomy, such as the distance between our earth and the stars.
Curated OER
European Space Agency: Story of the Universe
The story of the universe is told in this engaging site by the European Space Agency. The history of European space science is timelined with dates ranging from 1066 to present day. The birth of galaxies, the big bang, and the beginnings...
TeachEngineering
Teach Engineering: Beyond the Milky Way
When we look at the night sky, we see stars and the nearby planets of our own solar system. Many of those stars are actually distant galaxies and glowing clouds of dust and gases called nebulae. The universe is an immense space with...